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<title>Problem 1476. -- Cutting Cake -- 衡阳八中OJ离线版-2012-02-29</title><center><h2>1476: Cutting Cake</h2><span class=green>Time Limit: </span>10 Sec&nbsp;&nbsp;<span class=green>Memory Limit: </span>64 MB<br><span class=green>Submit: </span>35&nbsp;&nbsp;<span class=green>Solved: </span>12<br>[<a href='submitpage.php?id=1476'>Submit</a>][<a href='problemstatus.php?id=1476'>Status</a>][<a href='bbs.php?id=1476'>Discuss</a>]</center><h2>Description</h2><div class=content>给定你一块矩形板，矩形板是由n*m个1*1的单位元构成的。每次要你从板上切下一块矩形，切割的位置已知，且矩形的长宽与矩形板的长宽垂直或平行，且不会把一个单位元分开。由于可能原有的位置已经被切了很多刀了，你的任务就是每次回答把这块矩形切下来的时候，又切出了多少个连通块？

</div><h2>Input</h2><div class=content>第1行3个数n,m,p。分别表示矩形板的大小，和你要切的刀数。
接下来p行，每行4个数：x1,y1,x2,y2。表示每次要切的矩形的位置。

</div><h2>Output</h2><div class=content>一共p行，每行一个数，表示要切出的连通块数。

</div><h2>Sample Input</h2>
			<div class=content><span class=sampledata>3 3 2<br />
1 2 3 2<br />
2 1 2 3	</span></div><h2>Sample Output</h2>
			<div class=content><span class=sampledata>1<br />
2<br />
 <br />
在这个图中，假设灰色部分一被割下，那么如果切出红色矩形，一共切出了4块。<br />
数据范围约定：N,m<=1000,p<=100000<br />
<br />
<img border="0" src="images/1476.jpg"><br />
<br />
</span></div><h2>HINT</h2>
			<div class=content><p></p></div><h2>Source</h2>
			<div class=content><p><a href='problemset.html?search=Pku2843'>Pku2843</a></p></div><center>[<a href='submitpage.php?id=1476'>Submit</a>][<a href='problemstatus.php?id=1476'>Status</a>][<a href='bbs.php?id=1476'>Discuss</a>]</center>﻿<br>

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